• Step 1

  Preheat oven to 450 degrees. Toss squash and 2 Tbsp basting oil in large bowl; season with salt and pepper. Arrange squash in single layer on large parchment paper-lined baking sheet. Roast, 20-25 min, turning halfway through, until browned and tender. Remove from oven. Let rest until cool enough to handle, about 10 min.

• Step 2

  Reduce oven to 350 degrees. Add squash and 1 cup sauce to large bowl; toss to coat. Pour mixture evenly into casserole dish.

• Step 3

  Add apples and remaining sauce to bowl; toss to coat. Top squash mixture with layer of apple mixture. Gently press apples down with spatula. Season with salt and pepper. Bake 30 min until apples are tender; remove from oven. Top with gruyere.

• Step 4

  Preheat oven to BROIL. Combine 1 Tbsp basting oil and panko in bowl; sprinkle evenly over cheese. Return to oven; broil 2-3 min, until cheese melts and topping browns. Remove from oven. Let rest 10 min before serving.

See our Parmesan Cream Sauce recipe if you prefer to make sauce from scratch.

Note: When servings & ingredients are modified, nutrition & directions may vary.